Lock.



N. WA-ING.

LOCK.

APPLICATION FILED NOV. 20, 1911.

N. WAING.

LOOK. APPLIOATION FILED Nov. 20,1911.

Patented May 6, 1913.

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NIKOLAUS WAING, OF NEW YORK, N.

LOCK.

Specification of Letters Patent.

0 all whom it may concern:

Be it known that I, NIKonAUs WAING, acitizen of theKingdom of Hungary,and a resident of New York, borough of the Bronx, county and State ofNew York, have invented certain new and useful Improvements in Locks, ofwhich the following 1s a specification. Y I

This invention has reference to improvements'in locks and pertainsparticularly to safety locks to be used on house doors, inside doors,and office doors.

By virtue of the novel construction of the lock onlyone lock isnecessary in place of two used generally on house doors. The lock may beused for both right and left hand doors, the bolt being reversible. Thusbut one style of lock need be manufactured and kept in stock. The personmounting the lock simply reverses the bolt for changingthe look from aright to aleft hand one, or vice versa.

For the purpose of making the lock a double one, the same is soconstructed that the bolt sliding from the door into the socket of thejamb, or second half of a door, may be I moved into the socket to twicethe usual length by a second operation. This having beendone, the largeknob which can move thebolt only to the usual extent, can not open thelock. The lock can then be opened only by operating the key twice. Whentwo locks are on a house door, necessarily two keys have to be used,While with the present lock but one key is required. !The lock may alsobe opened from the insidh by means of a stationary ,or removable smallknob. If the small knob is removed, the key may be used. A thiefentering through a windowcan not leave by the door unless he knows thedouble operation of the lock by either the small knob or the key, evenif he should have either or both. If he operates the large knob alone,the doorwill not open, because this knob is effective only after thebolt has been moved backto the usual latching position. Although thelock represents a double one, it is of simple construction and,therefore, relatively cheap. It is illustrated in the accompanyingdrawings, in which- F1 re 1 represents in elevation a lock embodymg indesirable form the present improvements and shows the lock as ap lied tothe door as seen .from the outside. I' ig. 2 is a like view seen fromthe inside. Fig. 3

Patented May 6, 1913. Application'filed November 20, 1911. Serial No.661,318.

omitted. Fig. 5 is aside elevation of the device for inserting the key.6 is a front elevation of t-hedevice shown in Fig.5,

as applied to the lock from the outside. Fig. 7 illustrates in sideelevation the de-. tachable small knob as used on the inside. Fig. 8 isa rear elevationof same. Fig. 9 shows in side elevation the largelknobwith small circular disk on one side. Fig. 10 shows the lock in sideelevation with the front plate removed, the parts being shown in normalposition. Fig. 11 shows the lock with the parts-asthey a pear when thebolt -.has been moved to near y its full capacity.

Fig. 12 illustrates the parts as theyappear when the bolt has moved outof the socket, operated by the large knob. Fig. 13 represents inrearview the plate removed from i the lock. Figs. 14, 15 and 16 aredetail viewsof several operative parts.

Similar characters of reference denote like parts in all the figures.

The lock is applied to a door in the usual way with the metal plates A,B one on the inside and one on the outside, as shown in Figs'l and 2.These plates have openings for inserting the key in same manner as Yalelocks. There is also an opening for the knob by means of which the boltmay be retracted when the safety device has not i been operated.

The lock comprises a casing C with a covering plate D, a bolt E and theinside operative mechanism. The .bolt'E is secured to the lower endportion of a vertically extending portion of a rectangular support Fwhich slides and is guided between the guide bars G, H within thecasing, The horizontally extending portion of the support F has twonoses I I which extend at a right angle from same and are adapted toreceive a similar nose J of a lever K pivoted at one end to the cornerportion of the support F as at L. At its other end said lever Khas arearwardly and outwardly extending tail K for a purpose to be statedhereinafter. The lever K is drawn downwardly by means of a spring M andrests normally against the noses of the support F.

A vertical lever N is pivoted to the lower part of the casing. It isprovided with two shoulders N, N, by means ofwhich the lever may beoperated by a cam O. The middleportion of the lever N has a small tionof the sliding support F, thereby fore ing' this leverand its connectedparts as wellas the'lever N to the left. The lever N carries on itsupper end two shoulders N and N forming a recess Q. While the shoulder Nis short, the shoulder N is long enough to rest against a stop It on theeasing, arresting thus the further movementv of the lever-N to the left.Below the lever K and its noses I, I, there is provided a key lever Swhich is brazed to a circular 5 disk S. The lever S is rotatably mountedin the casing and the disk S has on its outer side a slot S into whichthe end of a key or other instrument, such, for instance, as is shown inFigs. 7 and- 8, may be inserted to turn the disk and thereby the keylever S. Whensaid key lever S ist'urned in the direction of the arrowshown in Fig. 10, it first raises the nose J and thereby the lever, Khigh enough to allow the tail K to pass over the top portion of thelever N and the key lever S then pushes the sliding support F to theleft as shown inFig. 11. When the lever .S is turned a little more inthe direction of the arrow, the sliding support F with the bolt Ecarried thereby is pushed a little more to the left into the positionshown in dotted linesin Fi 11.

-At this moment the levenS has le the rearwardly by the stop R.

When the bolt has assumed the above de scribed position, the lock actsas a safety lock 'becauw the door can not be opened except by the use ofa key or a little knob U which is provided with extensions U that fitinto the slot S of the disk S to which the key lever S is attached. Itis evident from the above that it requires two operations of the key toopen the door. The first operation brings the bolt into the positionshown in Fig. 10 and the second operation into the osition shown in Fig.12, when, by a dig t further movement of the key, the door can beopened. The key may be used from the inside of the door also, but onlysomeone knowing the construction of the lock will be able to openthedoor, because a person not acquainted with the construction will notattempt to operate the 5 key twice, and, therefore,.can not open theerated only after the.bolt has been returned K, which in turn isprevented froznmovi'ng door. If a thief, for instance, enters through awindow, he can not open the door and pass out by the, stairs or roof,but must also leave bythe window, exposed to view.

The small knob. U above mentioned may be permanently secured to the dooron the innerside or it-may be detachably mounted. It operates like thekey and when turned to the right .it. moves the key lever in thedirectionopposite to the arrow in Fig. 11 and lifts the lever K wherebythe tail-piece K is released from the'recess Q and-passesaway from thefront of the "stop R until it snaps in behind the lever N, Now all theparts are again in the position. shown in Fig..10. In turning the key1ever a second time by the small knob .U from the inside or by a keyfrom the outside, the lever 'S will come in contact with the'shoulder Iofthe sliding support F and push the bolt E to the right. Now the doormay be opened and the parts .are in the position indicated by dottedlines in Fig. 12. When the lock is opened from the inside by means ofthe small knob as described, the vertical lever N. of course remains inits normal position as shown in Fig.11.

' For convenience sakea large knob is used on the inside which, however,can be opto the position shown in Fig. 10, 0., after the first operationof thekey or smallknob. In this instance, the bolt is moved by the leverN and'the large knob T may be turned either to the right or left asrequired. This knob presses one of the edges of the cam Q against therespective shoulder N or N of the lever N thereby forcing the latter tothe right as shown in Fig. 12, and as the tail-piece K 10f the lever Kis in front of the lever N, it is moved thereby. For the purpose ofdrawing these parts back into the normal position, a spring Vis providedon the lever P, which is pivotally mounted on the lever N. v

The device W with the keyhole may be attached on either side of the lockcasing and the'bolt reversed as above mentioned, so that the lock maybeused as a right or left hand one. The large knob T isso con- 1175'structed that it rnay be inserted from each side into the look. In thismanner the lock may be applied to any kind of door. right.

or left handed, and it makes no difi'erence whether the door swings tothe outside or the inside.

I claim as my invention 1. A double safety lock for doors comprising acasing with guides in its upper portion, a reversible bolt sliding onone 195 guide, a rectangular support directly connected to said boltwith a horizontal portion sliding'in the second guide, a lever pivotedto the corner of said support, coiiperating downwardly extending noseson said support and lever, a spring mounted directly on said lever andbolt, a tail-piece at the end of said lever, means for operating saidnoses to move the bolt to its usual extent, and means engaging thetail-piece of the lever to further move the bolt to double the usualextent.

2. A double safety lock for doors comprising a casing with guides in'itsupper portion, a reversible bolt sliding on one guide, a

, .to its normal position.

3 In a double safety lock, a casing, guides in its upper portion, areversible bolt sllding onone guide, a rectangular support directly onthe inner-portion of the bolt with a horizontal portion sliding in thesecond guide, two downwardly extending noses on the latter, a horizontallever pivoted to the corner of the support having a nose located betweenthe noses of the support, a spring secured to said lever and the bolt,and means for operating said noses to move the bolt to double the usualextent in either direction.

4. In a double safety lock for doors inner active mechanism for movingthe bolt to twice the usual extent comprising a tail piece on one memberof said inner mechan1sm,-a cam operated vertical lever pivotally mountedin the lower portion of the casing resting with its tolp portion againstthe tailplece when the b0 t is moved to its usual extent and adapted tooperate the latter for opening the door, two projections in the topportion of said vertical lever forming a recess into which thetail-piece drops when the bolt has been moved to twice the usual extent,a spring returning the said lever into its normal position, and a smallstop on the casing limiting the action of said spring.

5. In a double safety lock for doors a cam operated vertical leverpivotally mounted in the lower portion of the casing and adapted to bemoved by a knob said lever having'two projections on its top portionwhich form a recess, a shoulder adjoiningthe projections, a stop in thecasing limiting the movement of said lever, a curved arm movable on thecam operated lever and resting against the rear surface of the bolt whensame is moved out to the usual extent, and a, spring connected to saidarm and the casing drawing said lever and said curved arm normallytoward the bolt.

6. In a double safety lock for doons, a bolt, means for inoving saidbolt to the usual extent, a cam operated vertical lever with twoshoulders on its lower portion, a knob adapted to be turned .either tothe right or left and pressing one of the edges of the cam against oneshoulder of the lever, and a small spring pressedlever'pivotally securedto the vertical lever pressing with its other end against the rear endof the bolt.

Signed at New York, N. Y., this 18th day of November, 1911.

NIKOLAUS WAING.

